Welcome to Space Book!
Here you will find all kinds of information about general astronomy and telescopes. Space Book is organized like an astronomy textbook, with chapters, sections, sample questions and examples.
Some of the topics were designed as background reading for our educational programs, while others are included to provide a well-rounded view of the current knowledge and theories in astronomy, and how astronomers study the universe.
4. The Solar System
Our Solar System consits of the Sun, four rocky planets, four gas giant plan...
Extrasolar planets, or exoplanets, are planets orbiting stars outside our sol...
The Universe contains billions of galaxies, each with millions or billions of...
Cosmology is the study of the origin and evolution of the Universe.
Astrobiology seeks to answer basic questions about life in the Universe.